65219213 has 4 divisors (see below), whose sum is σ = 65634780. Its totient is φ = 64803648.

The previous prime is 65219201. The next prime is 65219227. The reversal of 65219213 is 31291256.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36457444 + 28761769 = 6038^2 + 5363^2 .

It is a cyclic number.

It is not a de Polignac number, because 65219213 - 2⁸ = 65218957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65219813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207548 + ... + 207861.

It is an arithmetic number, because the mean of its divisors is an integer number (16408695).

Almost surely, 2^65219213 is an apocalyptic number.

It is an amenable number.

65219213 is a deficient number, since it is larger than the sum of its proper divisors (415567).

65219213 is a wasteful number, since it uses less digits than its factorization.

65219213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415566.

The product of its digits is 3240, while the sum is 29.

The square root of 65219213 is about 8075.8413184014. The cubic root of 65219213 is about 402.5240663053.

The spelling of 65219213 in words is "sixty-five million, two hundred nineteen thousand, two hundred thirteen".